<template>
  <footer class="footer">
    <span class="todo-count">剩余<strong>{{ count }}</strong></span>
    <ul class="filters">
      <li>
        <a :class="{selected:type === 'all'}" href="javascript:;" @click="$emit('changBtn','all')" >全部</a>
      </li>
      <li>
        <a :class="{selected:type === 'no'}" href="javascript:;" @click="$emit('changBtn','no')">未完成</a>
      </li>
      <li>
        <a :class="{selected:type === 'yes'}" href="javascript:;"  @click="$emit('changBtn','yes')">已完成</a>
      </li>
    </ul>
    <button class="clear-completed"  @click="$emit('clearBtn')">清除已完成</button>
  </footer>
</template>

<script>
export default {
    props:['list','type'],
    computed:{
        count(){
            return this.list.length
        }
    }
}
</script>